Android基于libvlc 播发rtsp视频流

使用libvlc 播放rtsp视频流的app demo.

从官方vlc官方sample上修改而来，下载地址：https://code.videolan.org/videolan/libvlc-android-samples/tree/master/

官方的sample是播放一个在安装包里面的.m4v 的卡通动画，稍作改动，就可以播放rtsp视频流了。（直接下载过来的工程无法使用，缺少 vlc的aar包，编译app也未配置好。个人配置好的包：https://download.csdn.net/download/u012459903/11049974）

把demo里面的

final Media media = new Media(mLibVLC, getAssets().openFd(ASSET_FILENAME));
改为

final Media media = new Media(mLibVLC, Uri.parse("rtsp://192.168.43.233:10086/stream"));
rtsp地址替换为自己的rtsp,去掉异常捕捉部分，可以在pc上用vlc播放器搭建一个进行测试。

官方的主要源码：

activity：

/*****************************************************************************
* JavaActivity.java
*****************************************************************************
* Copyright (C) 2016 VideoLAN
* All rights reserved.
*
* This software may be modified and distributed under the terms
* of the BSD license. See the LICENSE file for details.
*****************************************************************************/

package org.videolan.javasample;

import android.annotation.TargetApi;
import android.content.res.Configuration;
import android.graphics.PixelFormat;
import android.net.Uri;
import android.os.Build;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceView;
import android.view.TextureView;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewStub;
import android.widget.FrameLayout;

import org.videolan.libvlc.IVLCVout;
import org.videolan.libvlc.LibVLC;
import org.videolan.libvlc.Media;
import org.videolan.libvlc.MediaPlayer;

import java.io.IOException;
import java.util.ArrayList;

public class JavaActivity extends AppCompatActivity implements IVLCVout.OnNewVideoLayoutListener {
private static final boolean USE_SURFACE_VIEW = true;
private static final boolean ENABLE_SUBTITLES = true;
private static final String TAG = "JavaActivity";
private static final String ASSET_FILENAME = "bbb.m4v";
private static final int SURFACE_BEST_FIT = 0;
private static final int SURFACE_FIT_SCREEN = 1;
private static final int SURFACE_FILL = 2;
private static final int SURFACE_16_9 = 3;
private static final int SURFACE_4_3 = 4;
private static final int SURFACE_ORIGINAL = 5;
private static int CURRENT_SIZE = SURFACE_BEST_FIT;

private FrameLayout mVideoSurfaceFrame = null;
private SurfaceView mVideoSurface = null;
private SurfaceView mSubtitlesSurface = null;
private TextureView mVideoTexture = null;
private View mVideoView = null;

private final Handler mHandler = new Handler();
private View.OnLayoutChangeListener mOnLayoutChangeListener = null;

private LibVLC mLibVLC = null;
private MediaPlayer mMediaPlayer = null;
private int mVideoHeight = 0;
private int mVideoWidth = 0;
private int mVideoVisibleHeight = 0;
private int mVideoVisibleWidth = 0;
private int mVideoSarNum = 0;
private int mVideoSarDen = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

final ArrayList<String> args = new ArrayList<>();
args.add("-vvv");
mLibVLC = new LibVLC(this, args);
mMediaPlayer = new MediaPlayer(mLibVLC);

mVideoSurfaceFrame = (FrameLayout) findViewById(R.id.video_surface_frame);
if (USE_SURFACE_VIEW) {
ViewStub stub = (ViewStub) findViewById(R.id.surface_stub);
mVideoSurface = (SurfaceView) stub.inflate();
if (ENABLE_SUBTITLES) {
stub = (ViewStub) findViewById(R.id.subtitles_surface_stub);
mSubtitlesSurface = (SurfaceView) stub.inflate();
mSubtitlesSurface.setZOrderMediaOverlay(true);
mSubtitlesSurface.getHolder().setFormat(PixelFormat.TRANSLUCENT);
}
mVideoView = mVideoSurface;
}
else
{
ViewStub stub = (ViewStub) findViewById(R.id.texture_stub);
mVideoTexture = (TextureView) stub.inflate();
mVideoView = mVideoTexture;
}
}

@Override
protected void onDestroy() {
super.onDestroy();
mMediaPlayer.release();
mLibVLC.release();
}

@Override
protected void onStart() {
super.onStart();

final IVLCVout vlcVout = mMediaPlayer.getVLCVout();
if (mVideoSurface != null) {
vlcVout.setVideoView(mVideoSurface);
if (mSubtitlesSurface != null)
vlcVout.setSubtitlesView(mSubtitlesSurface);
}
else
vlcVout.setVideoView(mVideoTexture);
vlcVout.attachViews(this);
/*
try {
// final Media media = new Media(mLibVLC, getAssets().openFd(ASSET_FILENAME));
final Media media = new Media(mLibVLC, Uri.parse("rtsp://192.168.43.14:10086/stream"));
mMediaPlayer.setMedia(media);
media.release();
} catch (IOException e) {
throw new RuntimeException("Invalid asset folder");
}
*/
final Media media = new Media(mLibVLC, Uri.parse("rtsp://192.168.43.233:10086/stream"));
mMediaPlayer.setMedia(media);
media.release();
mMediaPlayer.play();

if (mOnLayoutChangeListener == null) {
mOnLayoutChangeListener = new View.OnLayoutChangeListener() {
private final Runnable mRunnable = new Runnable() {
@Override
public void run() {
updateVideoSurfaces();
}
};
@Override
public void onLayoutChange(View v, int left, int top, int right,
int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
if (left != oldLeft || top != oldTop || right != oldRight || bottom != oldBottom) {
mHandler.removeCallbacks(mRunnable);
mHandler.post(mRunnable);
}
}
};
}
mVideoSurfaceFrame.addOnLayoutChangeListener(mOnLayoutChangeListener);
}

@Override
protected void onStop() {
super.onStop();

if (mOnLayoutChangeListener != null) {
mVideoSurfaceFrame.removeOnLayoutChangeListener(mOnLayoutChangeListener);
mOnLayoutChangeListener = null;
}

mMediaPlayer.stop();

mMediaPlayer.getVLCVout().detachViews();
}

private void changeMediaPlayerLayout(int displayW, int displayH) {
/* Change the video placement using the MediaPlayer API */
switch (CURRENT_SIZE) {
case SURFACE_BEST_FIT:
mMediaPlayer.setAspectRatio(null);
mMediaPlayer.setScale(0);
break;
case SURFACE_FIT_SCREEN:
case SURFACE_FILL: {
Media.VideoTrack vtrack = mMediaPlayer.getCurrentVideoTrack();
if (vtrack == null)
return;
final boolean videoSwapped = vtrack.orientation == Media.VideoTrack.Orientation.LeftBottom
|| vtrack.orientation == Media.VideoTrack.Orientation.RightTop;
if (CURRENT_SIZE == SURFACE_FIT_SCREEN) {
int videoW = vtrack.width;
int videoH = vtrack.height;

if (videoSwapped) {
int swap = videoW;
videoW = videoH;
videoH = swap;
}
if (vtrack.sarNum != vtrack.sarDen)
videoW = videoW * vtrack.sarNum / vtrack.sarDen;

float ar = videoW / (float) videoH;
float dar = displayW / (float) displayH;

float scale;
if (dar >= ar)
scale = displayW / (float) videoW; /* horizontal */
else
scale = displayH / (float) videoH; /* vertical */
mMediaPlayer.setScale(scale);
mMediaPlayer.setAspectRatio(null);
} else {
mMediaPlayer.setScale(0);
mMediaPlayer.setAspectRatio(!videoSwapped ? ""+displayW+":"+displayH
: ""+displayH+":"+displayW);
}
break;
}
case SURFACE_16_9:
mMediaPlayer.setAspectRatio("16:9");
mMediaPlayer.setScale(0);
break;
case SURFACE_4_3:
mMediaPlayer.setAspectRatio("4:3");
mMediaPlayer.setScale(0);
break;
case SURFACE_ORIGINAL:
mMediaPlayer.setAspectRatio(null);
mMediaPlayer.setScale(1);
break;
}
}

private void updateVideoSurfaces() {
int sw = getWindow().getDecorView().getWidth();
int sh = getWindow().getDecorView().getHeight();

// sanity check
if (sw * sh == 0) {
Log.e(TAG, "Invalid surface size");
return;
}

mMediaPlayer.getVLCVout().setWindowSize(sw, sh);

ViewGroup.LayoutParams lp = mVideoView.getLayoutParams();
if (mVideoWidth * mVideoHeight == 0) {
/* Case of OpenGL vouts: handles the placement of the video using MediaPlayer API */
lp.width = ViewGroup.LayoutParams.MATCH_PARENT;
lp.height = ViewGroup.LayoutParams.MATCH_PARENT;
mVideoView.setLayoutParams(lp);
lp = mVideoSurfaceFrame.getLayoutParams();
lp.width = ViewGroup.LayoutParams.MATCH_PARENT;
lp.height = ViewGroup.LayoutParams.MATCH_PARENT;
mVideoSurfaceFrame.setLayoutParams(lp);
changeMediaPlayerLayout(sw, sh);
return;
}

if (lp.width == lp.height && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
/* We handle the placement of the video using Android View LayoutParams */
mMediaPlayer.setAspectRatio(null);
mMediaPlayer.setScale(0);
}

double dw = sw, dh = sh;
final boolean isPortrait = getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT;

if (sw > sh && isPortrait || sw < sh && !isPortrait) {
dw = sh;
dh = sw;
}

// compute the aspect ratio
double ar, vw;
if (mVideoSarDen == mVideoSarNum) {
/* No indication about the density, assuming 1:1 */
vw = mVideoVisibleWidth;
ar = (double)mVideoVisibleWidth / (double)mVideoVisibleHeight;
} else {
/* Use the specified aspect ratio */
vw = mVideoVisibleWidth * (double)mVideoSarNum / mVideoSarDen;
ar = vw / mVideoVisibleHeight;
}

// compute the display aspect ratio
double dar = dw / dh;

switch (CURRENT_SIZE) {
case SURFACE_BEST_FIT:
if (dar < ar)
dh = dw / ar;
else
dw = dh * ar;
break;
case SURFACE_FIT_SCREEN:
if (dar >= ar)
dh = dw / ar; /* horizontal */
else
dw = dh * ar; /* vertical */
break;
case SURFACE_FILL:
break;
case SURFACE_16_9:
ar = 16.0 / 9.0;
if (dar < ar)
dh = dw / ar;
else
dw = dh * ar;
break;
case SURFACE_4_3:
ar = 4.0 / 3.0;
if (dar < ar)
dh = dw / ar;
else
dw = dh * ar;
break;
case SURFACE_ORIGINAL:
dh = mVideoVisibleHeight;
dw = vw;
break;
}

// set display size
lp.width = (int) Math.ceil(dw * mVideoWidth / mVideoVisibleWidth);
lp.height = (int) Math.ceil(dh * mVideoHeight / mVideoVisibleHeight);
mVideoView.setLayoutParams(lp);
if (mSubtitlesSurface != null)
mSubtitlesSurface.setLayoutParams(lp);

// set frame size (crop if necessary)
lp = mVideoSurfaceFrame.getLayoutParams();
lp.width = (int) Math.floor(dw);
lp.height = (int) Math.floor(dh);
mVideoSurfaceFrame.setLayoutParams(lp);

mVideoView.invalidate();
if (mSubtitlesSurface != null)
mSubtitlesSurface.invalidate();
}

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
@Override
public void onNewVideoLayout(IVLCVout vlcVout, int width, int height, int visibleWidth, int visibleHeight, int sarNum, int sarDen) {
mVideoWidth = width;
mVideoHeight = height;
mVideoVisibleWidth = visibleWidth;
mVideoVisibleHeight = visibleHeight;
mVideoSarNum = sarNum;
mVideoSarDen = sarDen;
updateVideoSurfaces();
}
}

布局文件：activity_main.xml:

surface_view.xml:

<?xml version="1.0" encoding="utf-8"?>
<SurfaceView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
</SurfaceView>
texture_view.xml:

<?xml version="1.0" encoding="utf-8"?>
<TextureView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
</TextureView>

————————————————
版权声明：本文为CSDN博主「白皮书CAN」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/u012459903/article/details/88739782